EP2290298B2 - Extractor hood comprising device for diverting an air flow - Google Patents

Extractor hood comprising device for diverting an air flow Download PDF

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Publication number
EP2290298B2
EP2290298B2 EP10005732.2A EP10005732A EP2290298B2 EP 2290298 B2 EP2290298 B2 EP 2290298B2 EP 10005732 A EP10005732 A EP 10005732A EP 2290298 B2 EP2290298 B2 EP 2290298B2
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EP
European Patent Office
Prior art keywords
outlet
housing
divert
flaps
fume extraction
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EP10005732.2A
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German (de)
French (fr)
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EP2290298A2 (en
EP2290298A3 (en
EP2290298B1 (en
Inventor
Beat Ernst
Morten Hansen
Kurt Tiefenauer
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Wesco AG
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Wesco AG
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Priority to PL10005732T priority Critical patent/PL2290298T3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings

Definitions

  • the invention relates to an extractor hood with a diverting device for diverting an air flow according to the preamble of claim 1.
  • Extractor hoods of this type are known to be used to operate them alternately either in exhaust air mode or in recirculation mode, as desired or required, in the first case the air filtered in the extractor hood flows out through an exhaust air duct, while in the other case it flows into the air as recirculation air
  • the installation room of the system flows back. Switching from one operating mode to the other takes place by pivoting the diverting flap into the respective switching position.
  • a range hood of this type is in the EP-A-1 055 883 disclosed.
  • the bypass device is fully integrated in the extractor hood. It is therefore impossible to make the device variable without great effort in order to adapt it to given conditions of use and existing line connections. It is also disadvantageous that the diversion device has to be serviced or repaired directly on the extractor hood, which generally requires longer operational interruptions.
  • a device for extractor hoods for alternating operation between circulating air and exhaust air in which a pipe-like housing is connected to a socket or opposite to a pipe for the exhaust air in a horizontal orientation.
  • This tube-like housing is also assigned a transversely leading opening for a recirculation mode.
  • a pivoting flap in the housing enables alternating operation between circulating air and exhaust air.
  • the disadvantage of this device is this tube-like housing, which is provided with only one opening for circulating air operation.
  • a control device for exhaust air or air recirculation devices in particular for extractor hoods, is explained, in which an inlet and an outlet opening and also a part with an outlet opening for the air circulation path are provided in the form of a three-way valve.
  • a swivel flap is rotatably mounted in it, by means of which the air to be discharged is directed to the outside or back into the room or through mixed operation both to the outside and back into the room.
  • This control device is integrated directly in the housing of the extractor hood, which is structurally complex.
  • two pivotably mounted flaps are arranged in a housing so that they can be adjusted relative to one another via a gear so that they pivot symmetrically with respect to the axis of the passage, so that the passage or the lateral openings in the housing are either open or closed.
  • the invention is based on the object of avoiding these disadvantages and of creating an extractor hood of the type mentioned at the beginning, which can be used with different operating conditions and line connections.
  • the diversion device forms a separate structural unit, the structure of which can be determined from case to case according to the respective features of the system.
  • the unit can be dismantled at any time to replace or repair the module.
  • the invention provides that its connection on the outlet side preferably has standardized sizes and arrangements, so that it can be connected without problems to line connections that are also normally standardized.
  • connection on the outlet side is expediently arranged in an exchangeable cover of the housing. This makes it possible to provide the diversion device with the appropriate connection without having to replace the entire module.
  • the bottom wall of the housing is provided with an insulation made of sound and vibration absorbing material, which reduces the acoustic and mechanical stress caused by the suction fan of the extractor hood.
  • the diversion device is equipped with a front outlet for exhaust air mode and two side outlets for recirculation mode, with the exhaust air flowing out in the axial direction of the extractor hood, while the circulating air flows back into the installation room of the system on both sides, transversely to its axial direction.
  • This arrangement is usually appropriate in view of the space that is usually available.
  • insulation made of sound and vibration absorbing material is also provided in the area of the side outlets.
  • the diverting flaps can be pivoted in opposite directions by intermeshing gear segments to which the flaps are attached transversely to them.
  • Such a drive is very simple in terms of design and control, and also has the advantage that it automatically ensures the synchronous switching of the flaps.
  • the gear segments are made of sheet-like material and are arranged in a plane close to an inner wall of the housing. In this way, a large free passage channel is created in the installation space of the diversion device, through which the exhaust air flows unhindered.
  • the gear segments can be actuated with a drive, preferably designed as an electric motor, which is attached to an outer wall of the housing and drives the axis of rotation of one gear segment in order to pivot the diverting flaps into the desired switching position.
  • a drive preferably designed as an electric motor, which is attached to an outer wall of the housing and drives the axis of rotation of one gear segment in order to pivot the diverting flaps into the desired switching position.
  • one of the gearwheel segments with a part-circular groove which cooperates with a stop bolt that limits the angle of rotation of the gearwheel segments.
  • the extractor hood 1 illustrated has a prismatic shaft 2 in which an invisible suction fan and a likewise invisible filter device, usually consisting of an odor filter and a grease filter, are installed.
  • An inlet funnel 3 is arranged on the inlet side of the shaft 2 and guides the exhaust air into the shaft 2.
  • a diversion device 4 is arranged with which the exhaust air flowing through the shaft 2 can be diverted either into an exhaust air line 5 or as circulating air into the installation room 6 of the system.
  • the diverting device 4 has a housing 7 which, as from Fig. 2 can be seen, is provided with a bottom inlet 8, a front outlet 9 for the exhaust air operation and two opposite side outlets 10a, 10b for the circulating air operation.
  • a housing 7 In the housing 7 there are also two diverting flaps 11a, 11b which are pivotable between the outlet 9 and the outlets 10a, 10b and which can be driven in opposite directions by interlocking gear segments 12a, 12b.
  • the latter are made as flat gear disks from sheet metal, which are rotatable about their axes of rotation 13a, 13b in a plane close to a side wall 14 of the housing.
  • the bottom inlet 8 can be connected directly to the extractor hood, as shown, or to a line arranged in between.
  • the diverting flaps 11a, 11b are attached to the gear segments 12a, 12b transversely to their common plane. In the in Fig. 2 They are swiveled out against slightly inclined seat surfaces 15a, 15b and close the side outlets 10a, 10b, while the front outlet 9 as well as the opposite inlet 8 in the bottom wall 16 of the housing 7 are open. In this switching position, the exhaust air sucked into the shaft 2 is passed through the passage delimited by the flaps 11a, 11b and the side walls of the housing and can flow out into the open through the adjoining exhaust air line 5. Since the gear segments are thin and are placed close to the side wall 14 of the housing, the exhaust air can flow through unhindered through a relatively large free passage cross-section.
  • the flaps 11a, 11b block the passage and simultaneously open the two side outlets 10a, 10b so that the exhaust air flows back through them as circulating air into the installation room 6 of the system.
  • the flaps 11a, 11b are ajar against further seat surfaces 17a, 17b.
  • the latter are arranged approximately perpendicular to the seat surfaces 15a, 15b.
  • one gear segment 12b is provided with a part-circular groove 18 which interacts with a stop bolt 19 which limits the angle of rotation of the gear segments 12a, 12b.
  • the gear segments 12a, 12b can be actuated with an electric motor 20, by means of which the axis of rotation 13a of the gear segment 12a can be driven.
  • the electric motor 20 is attached to an outer wall 21 of the housing 7 in an easily accessible manner. It requires simple controls and a small footprint, and can be easily serviced and replaced if necessary. Instead of the electric motor, other correspondingly compact and functionally reliable drives can also be used.
  • the housing 7 with the diverting device 4 forms a separate structural unit which can be connected on the inlet side to the duct 2 of the extractor hood 1 and on the outlet side to the exhaust air line 5 shown in dash-dotted lines.
  • the inlet-side connection 22 is arranged in the bottom wall 16 of the housing.
  • the standardized connection piece 23 is located in the cover 24, which is fixedly attached to the housing 7. Both connections have standardized arrangements and sizes which correspond to those of the shaft 2 and the exhaust air line 5. This makes it easier to assemble the extractor hood as well as to connect it to the system's exhaust duct.
  • the structure according to the invention of the diverting device 4 as a modular unit enables the adaptation the same to the respective conditions of use by choosing the appropriate module. It is also possible to use standardized extractor hoods and standardized exhaust air ducts, which has considerable economic advantages. In addition, the repair of the diversion device is also made much easier because it can be carried out outside the system, for example by replacing the module.
  • the bottom wall 16 has an insulation 25 made of sound- and vibration-absorbing material, which reduces the noise and vibration disturbances of the suction fan.
  • material insulation 26a, 26b are also provided in the area of the lateral outlets 10a, 10b.
  • Fig. 2 is as an alternative in contrast to Fig. 1 at the inlet a line 5 analogous to that at the outlet is provided, which can then be connected to the extractor hood or the like.
  • the diverting device described has two lateral outlets 10a, 10b in order to direct the circulating air into the installation space 6 more evenly than would be the case with only one lateral outlet opening.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Multiple-Way Valves (AREA)

Description

Die Erfindung betrifft eine Dunstabzugshaube mit einer Umleiteinrichtung zum Umleiten eines Luftstroms nach dem Oberbegriff des Anspruches 1.The invention relates to an extractor hood with a diverting device for diverting an air flow according to the preamble of claim 1.

Dunstabzugshauben dieser Art werden bekanntlich eingesetzt, um diese wechselweise je nach Wunsch oder Bedarf entweder im Abluftbetrieb oder im Umluftbetrieb zu betreiben, wobei im ersten Fall die in der Dunstabzugshaube filtrierte Luft durch eine Abluftleitung ins Freie hinausströmt, während sie im anderen Fall als Umluft in den Aufstellraum der Anlage zurückströmt. Das Umschalten von einer Betriebsweise in die andere erfolgt dabei durch Einschwenken der Umleitklappe in die jeweilige Schaltstellung.Extractor hoods of this type are known to be used to operate them alternately either in exhaust air mode or in recirculation mode, as desired or required, in the first case the air filtered in the extractor hood flows out through an exhaust air duct, while in the other case it flows into the air as recirculation air The installation room of the system flows back. Switching from one operating mode to the other takes place by pivoting the diverting flap into the respective switching position.

Eine Dunstabzugshaube dieser Art ist in der EP-A-1 055 883 offenbart. Die Umleiteinrichtung ist dort in der Dunstabzugshaube voll integriert. Es ist somit unmöglich, die Einrichtung ohne grossen Aufwand variabel zu gestalten, um sie an vorgegebene Einsatzbedingungen und vorhandene Leitungsanschlüssen anzupassen. Es ist ausserdem nachteilig, dass die Wartung oder Reparatur der Umleiteinrichtung direkt an der Dunstabzugshaube erfolgen muss, was in der Regel längere Betriebsunterbrechungen erfordert.A range hood of this type is in the EP-A-1 055 883 disclosed. The bypass device is fully integrated in the extractor hood. It is therefore impossible to make the device variable without great effort in order to adapt it to given conditions of use and existing line connections. It is also disadvantageous that the diversion device has to be serviced or repaired directly on the extractor hood, which generally requires longer operational interruptions.

In der Druckschrift DE-A-10 2006 024 658 ist eine Einrichtung für Dunstabzugshauben zum Wechselbetrieb zwischen Umluft und Abluft offenbart, bei welcher ein rohrähnliches Gehäuse an einem Stutzen bzw. gegenüberliegend an einem Rohr für die Abluft in horizontaler Ausrichtung angeschlossen ist. Diesem rohrähnlichen Gehäuse ist zudem eine quer wegführende Öffnung für einen Umluftbetrieb zugeordnet. Eine schwenkbare Umlenkklappe im Gehäuse ermöglicht den Wechselbetrieb zwischen Umluft und Abluft. Nachteilig bei dieser Einrichtung ist dieses rohrähnliche Gehäuse, welches mit nur einer Öffnung für den Umluftbetrieb versehen ist.In the pamphlet DE-A-10 2006 024 658 a device for extractor hoods for alternating operation between circulating air and exhaust air is disclosed, in which a pipe-like housing is connected to a socket or opposite to a pipe for the exhaust air in a horizontal orientation. This tube-like housing is also assigned a transversely leading opening for a recirculation mode. A pivoting flap in the housing enables alternating operation between circulating air and exhaust air. The disadvantage of this device is this tube-like housing, which is provided with only one opening for circulating air operation.

Bei der Druckschrift DE-A-30 40 051 ist eine Steuervorrichtung für Abluft- bzw. Umluftgeräte, insbesondere für Dunstabzugshauben erläutert, bei welcher in Form eines Dreiwegventils eine Eintritts- und eine Austrittsöffnung und zudem ein Teil mit einer Austrittsöffnung für den Umluftweg vorgesehen sind. Für die Umstellung des Dreiwegventils ist darin eine Schwenkklappe drehbar gelagert, mittels welcher die abzuführende Luft nach außen oder wieder zurück in den Raum oder durch einen Mischbetrieb sowohl nach außen als auch zurück in den Raum geleitet wird. Diese Steuervorrichtung ist dabei direkt im Gehäuse der Dunstabzugshaube integriert, was konstruktiv aufwändig ist.With the print DE-A-30 40 051 a control device for exhaust air or air recirculation devices, in particular for extractor hoods, is explained, in which an inlet and an outlet opening and also a part with an outlet opening for the air circulation path are provided in the form of a three-way valve. For the adjustment of the three-way valve, a swivel flap is rotatably mounted in it, by means of which the air to be discharged is directed to the outside or back into the room or through mixed operation both to the outside and back into the room. This control device is integrated directly in the housing of the extractor hood, which is structurally complex.

Bei einer Vorrichtung zur Regelung der Mischung eines Luftstromes gemäß der Auslegeschrift DE-B 1 227 743 sind in einem Gehäuse zwei schwenkbar gelagerte Klappen über ein Getriebe so zueinander verstellbar angeordnet, dass diese in Bezug auf die Achse des Durchlasses eine symmetrische Schwenkung ausführen, so dass der Durchlass bzw. die seitlichen Öffnungen im Gehäuse entweder geöffnet oder geschlossen sind.In a device for regulating the mixture of an air flow according to the Auslegeschrift DE-B 1 227 743 two pivotably mounted flaps are arranged in a housing so that they can be adjusted relative to one another via a gear so that they pivot symmetrically with respect to the axis of the passage, so that the passage or the lateral openings in the housing are either open or closed.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und eine Dunstazugshaube der eingangs genannten Art zu schaffen, die mit unterschiedlichen Betriebsbedingungen und Leitungsanschlüssen einsetzbar ist.The invention is based on the object of avoiding these disadvantages and of creating an extractor hood of the type mentioned at the beginning, which can be used with different operating conditions and line connections.

Diese Aufgabe wird erfindungsgemäß durch eine Dunstabzugshaube mit den Merkmalen von Anspruch 1 gelöst.According to the invention, this object is achieved by an extractor hood with the features of claim 1.

Bevorzugte Ausführungsformen sind in dem abhängigen Ansprüchen definiert.Preferred embodiments are defined in the dependent claims.

Auf diese Weise bildet die Umleiteinrichtung eine separate Baueinheit, deren Aufbau von Fall zu Fall gemäß den jeweiligen Merkmalen der Anlage festlegbar ist. Die Baueinheit kann jederzeit zum Austauschen oder Reparieren des Moduls abgebaut werden.In this way, the diversion device forms a separate structural unit, the structure of which can be determined from case to case according to the respective features of the system. The unit can be dismantled at any time to replace or repair the module.

Um den Einbau der Umleiteinrichtung zu erleichtern, sieht die Erfindung vor, dass vorzugsweise ihre auslassseitige Verbindung normierte Größen und Anordnungen aufweist, so dass sie problemlos an in der Regel ebenfalls normierte Leitungsverbindungen anschliessbar ist.In order to facilitate the installation of the diversion device, the invention provides that its connection on the outlet side preferably has standardized sizes and arrangements, so that it can be connected without problems to line connections that are also normally standardized.

Die auslassseitige Verbindung ist zweckmäßigerweise in einem austauschbaren Deckel des Gehäuses angeordnet. Dadurch ist es möglich, die Umleiteinrichtung mit der passenden Verbindung zu versehen, ohne dass man dafür das ganze Modul austauschen muss.The connection on the outlet side is expediently arranged in an exchangeable cover of the housing. This makes it possible to provide the diversion device with the appropriate connection without having to replace the entire module.

Zwecks eines möglichst ruhigen Betriebs ist die Bodenwand des Gehäuses mit einer Isolierung aus schall- und vibrationsdämmendem Material versehen, welche die vom Sauggebläse der Dunstabzugshaube verursachte akustische und mechanische Belastung herabsetzt.For the purpose of the quietest possible operation, the bottom wall of the housing is provided with an insulation made of sound and vibration absorbing material, which reduces the acoustic and mechanical stress caused by the suction fan of the extractor hood.

In einer ersten Ausführungsform ist die Umleiteinrichtung mit einem stirnseitigen Auslass für den Abluftbetrieb und zwei seitlichen Auslässen für den Umluftbetrieb ausgestattet, wobei die Abluft in Achsrichtung der Dunstabzugshaube herausströmt, während die Umluft beidseitig quer zu deren Achsrichtung in den Aufstellraum der Anlage zurückströmt. Diese Anordnung ist in der Regel im Hinblick auf die üblicherweise vorhandenen Raumverhältnisse zweckmäßig.In a first embodiment, the diversion device is equipped with a front outlet for exhaust air mode and two side outlets for recirculation mode, with the exhaust air flowing out in the axial direction of the extractor hood, while the circulating air flows back into the installation room of the system on both sides, transversely to its axial direction. This arrangement is usually appropriate in view of the space that is usually available.

Bei der obigen Ausführungsform ist es möglich, die Umleitklappen in Zwischenstellungen zu schalten, in denen die Anlage im kombinierten Abluft- und Umluftbetrieb betreibbar ist.In the above embodiment, it is possible to switch the diverting flaps to intermediate positions in which the system can be operated in combined exhaust air and recirculation mode.

Zwecks eines möglichst ruhigen Betriebs sind auch Isolierungen aus schall- und vibrationsdämmendem Material im Bereich der seitlichen Auslässe vorgesehen.In order to ensure the quietest possible operation, insulation made of sound and vibration absorbing material is also provided in the area of the side outlets.

Erfindungsgemäss sind die Umleitklappen gegenläufig durch ineinandergreifende Zahnradsegmente schwenkbar, an welchen die Klappen quer zu ihnen befestigt sind. Ein solcher Antrieb ist konstruktiv und steuerungstechnisch sehr einfach, und hat zudem den Vorteil, dass er das synchronische Umschalten der Klappen selbsttätig sicherstellt.According to the invention, the diverting flaps can be pivoted in opposite directions by intermeshing gear segments to which the flaps are attached transversely to them. Such a drive is very simple in terms of design and control, and also has the advantage that it automatically ensures the synchronous switching of the flaps.

Die Zahnradsegmente sind erfindungsgemäss aus blechartigem Material hergestellt und in einer Ebene dicht an einer Innenwand des Gehäuses angeordnet. Auf diese Weise entsteht im Aufstellraum der Umleiteinrichtung ein grosser freier Durchgangskanal, durch welchen die Abluft ungehindert hindurchströmt.According to the invention, the gear segments are made of sheet-like material and are arranged in a plane close to an inner wall of the housing. In this way, a large free passage channel is created in the installation space of the diversion device, through which the exhaust air flows unhindered.

Vorteilhaft sind die Zahnradsegmente mit einem vorzugsweise als Elektromotor ausgebildeten Antrieb betätigbar, der an einer Außenwand des Gehäuses angebracht ist und die Drehachse des einen Zahnradsegments antreibt, um die Umleitklappen in die gewünschten Schaltstellung einzuschwenken. Ein solcher Antrieb ist raumsparend, leicht und feinfühlig steuerbar, und ausserdem gut zugänglich im Hinblick auf eventuell erforderliche Handgriffe.Advantageously, the gear segments can be actuated with a drive, preferably designed as an electric motor, which is attached to an outer wall of the housing and drives the axis of rotation of one gear segment in order to pivot the diverting flaps into the desired switching position. Such a drive is space-saving, easy and sensitive to control, and also easily accessible with regard to any necessary hand movements.

Zur Steigerung der Funktionssicherheit der Umleiteinrichtung ist es zweckmäßig, eines der Zahnradsegmente mit einer teilkreisförmigen Nut zu versehen, die mit einem den Drehwinkel der Zahnradsegmente begrenzenden Anschlagbolzen zusammenwirkt.To increase the functional reliability of the diversion device, it is expedient to provide one of the gearwheel segments with a part-circular groove which cooperates with a stop bolt that limits the angle of rotation of the gearwheel segments.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigen:

Fig. 1
Erfindungsgemäße Dunstabzugshaube mit einer Umleiteinrichtung, perspektivisch dargestellt, und
Fig. 2
die Umleiteinrichtung aus Fig. 1, im Schnitt und vergrößert dargestellt.
The invention is explained in more detail below using an exemplary embodiment with reference to the drawing. Show it:
Fig. 1
Extractor hood according to the invention with a diversion device, shown in perspective, and
Fig. 2
the diverter off Fig. 1 , shown in section and enlarged.

Die in Fig. 1 veranschaulichte Dunstabzugshaube 1 weist einen prismatischen Schacht 2 auf, in dem ein nicht sichtbares Sauggebläse und eine ebenfalls nicht sichtbare Filtereinrichtung, in der Regel bestehend aus einem Geruchsfilter und einem Fettfilter, eingebaut sind. Am Schacht 2 ist einlassseitig ein Einlasstrichter 3 angeordnet, der die Abluft in den Schacht 2 hineinleitet.In the Fig. 1 The extractor hood 1 illustrated has a prismatic shaft 2 in which an invisible suction fan and a likewise invisible filter device, usually consisting of an odor filter and a grease filter, are installed. An inlet funnel 3 is arranged on the inlet side of the shaft 2 and guides the exhaust air into the shaft 2.

Am auslassseitigen Ende des Schachtes 2 ist eine Umleiteinrichtung 4 angeordnet, mit welcher die durch den Schacht 2 strömende Abluft entweder in eine Abluftleitung 5 oder als Umluft in den Aufstellraum 6 der Anlage umleitbar ist.At the outlet end of the shaft 2, a diversion device 4 is arranged with which the exhaust air flowing through the shaft 2 can be diverted either into an exhaust air line 5 or as circulating air into the installation room 6 of the system.

Die Umleiteinrichtung 4 weist ein Gehäuse 7 auf, das, wie aus Fig. 2 ersichtlich, mit einem bodenseitigen Einlass 8, einem stirnseitigen Auslass 9 für den Abluftbetrieb und zwei sich gegenüberstehenden seitlichen Auslässen 10a, 10b für den Umluftbetrieb versehen ist. Im Gehäuse 7 sind auch zwei zwischen dem Auslass 9 und den Auslässen 10a, 10b schwenkbare Umleitklappen 11a, 11b angeordnet, die gegenläufig durch ineinandergreifende Zahnradsegmente 12a, 12b antreibbar sind. Letztere sind als flache Zahnradscheiben aus Blech hergestellt, die um ihre Drehachsen 13a, 13b in einer Ebene dicht an einer Seitenwand 14 des Gehäuses drehbar sind. Der bodenseitige Einlass 8 kann direkt an die Abzugshaube, wie dargestellt, oder aber an eine dazwischen angeordnete Leitung angeschlossen sein.The diverting device 4 has a housing 7 which, as from Fig. 2 can be seen, is provided with a bottom inlet 8, a front outlet 9 for the exhaust air operation and two opposite side outlets 10a, 10b for the circulating air operation. In the housing 7 there are also two diverting flaps 11a, 11b which are pivotable between the outlet 9 and the outlets 10a, 10b and which can be driven in opposite directions by interlocking gear segments 12a, 12b. The latter are made as flat gear disks from sheet metal, which are rotatable about their axes of rotation 13a, 13b in a plane close to a side wall 14 of the housing. The bottom inlet 8 can be connected directly to the extractor hood, as shown, or to a line arranged in between.

Die Umleitklappen 11a, 11b sind an den Zahnradsegmenten 12a, 12b quer zu deren gemeinsamen Ebene befestigt. In der in Fig. 2 dargestellten Betriebsstellung sind sie gegen leicht geneigte Sitzflächen 15a, 15b ausgeschwenkt und verschließen die seitlichen Auslässe 10a, 10b, während der stirnseitige Auslass 9 genauso wie der gegenüberliegende Einlass 8 in der Bodenwand 16 des Gehäuses 7 offen sind. In dieser Schaltstellung wird die in den Schacht 2 eingesaugte Abluft durch den von den Klappen 11a, 11b und den Seitenwänden des Gehäuses begrenzten Durchgangskanal hindurchgeleitet und kann ins Freie durch die sich daran anschließende Abluftleitung 5 hinausströmen. Da die Zahnradsegmente dünn sind und dicht an der Seitenwand 14 des Gehäuses plaziert sind, kann die Abluft durch einen verhältnismäßig großen freien Durchgangsquerschnitt ungehindert hindurchströmen.The diverting flaps 11a, 11b are attached to the gear segments 12a, 12b transversely to their common plane. In the in Fig. 2 They are swiveled out against slightly inclined seat surfaces 15a, 15b and close the side outlets 10a, 10b, while the front outlet 9 as well as the opposite inlet 8 in the bottom wall 16 of the housing 7 are open. In this switching position, the exhaust air sucked into the shaft 2 is passed through the passage delimited by the flaps 11a, 11b and the side walls of the housing and can flow out into the open through the adjoining exhaust air line 5. Since the gear segments are thin and are placed close to the side wall 14 of the housing, the exhaust air can flow through unhindered through a relatively large free passage cross-section.

In der strichpunktiert dargestellten Schaltstellung sperren die Klappen 11a, 11b den Durchgangskanal ab und öffnen gleichzeitig die beiden seitlichen Auslässe 10a, 10b, so dass die Abluft durch diese als Umluft in den Aufstellraum 6 der Anlage zurückströmt. In dieser Schaltstellung sind die Klappen 11a, 11b gegen weitere Sitzflächen 17a, 17b angelehnt. Letztere sind annährend senkrecht zu den Sitzflächen 15a, 15b angeordnet. Zur Steigerung der Funktionssicherheit der Umleiteinrichtung ist das eine Zahnradsegment 12b mit einer teilkreisförmigen Nut 18 versehen, die mit einem den Drehwinkel der Zahnradsegmente 12a, 12b begrenzenden Anschlagbolzen 19 zusammenwirkt.In the switching position shown in dash-dotted lines, the flaps 11a, 11b block the passage and simultaneously open the two side outlets 10a, 10b so that the exhaust air flows back through them as circulating air into the installation room 6 of the system. In this switching position, the flaps 11a, 11b are ajar against further seat surfaces 17a, 17b. The latter are arranged approximately perpendicular to the seat surfaces 15a, 15b. To increase the functional reliability of the diversion device, one gear segment 12b is provided with a part-circular groove 18 which interacts with a stop bolt 19 which limits the angle of rotation of the gear segments 12a, 12b.

Die Zahnradsegmente 12a, 12b sind mit einem Elektromotor 20 betätigbar, durch welchen die Drehachse 13a des Zahnradsegments 12a antreibbar ist. Der Elektromotor 20 ist leicht zugänglich an einer Außenwand 21 des Gehäuses 7 angebracht. Er benötigt eine einfache Steuerung und einen geringen Platzbedarf, und kann bequem gewartet und im Bedarfsfall ausgetauscht werden. Anstelle des Elektromotors sind auch andere entsprechend kleinbauende und funktionssichere Antriebe verwendbar.The gear segments 12a, 12b can be actuated with an electric motor 20, by means of which the axis of rotation 13a of the gear segment 12a can be driven. The electric motor 20 is attached to an outer wall 21 of the housing 7 in an easily accessible manner. It requires simple controls and a small footprint, and can be easily serviced and replaced if necessary. Instead of the electric motor, other correspondingly compact and functionally reliable drives can also be used.

Das Gehäuse 7 mit der Umleiteinrichtung 4 bildet eine separate Baueinheit, die einlassseitig mit dem Schacht 2 der Dunstabzugshaube 1 und auslassseitig mit der strichpunktiert dargestellten Abluftleitung 5 verbindbar ist. Die einlassseitige Verbindung 22 ist in der Bodenwand 16 des Gehäuses angeordnet. Der normierte Anschlussstutzen 23 befindet sich im Deckel 24, der fix am Gehäuse 7 befestigt ist. Beide Verbindungen haben genormte Anordnungen und Größen, die mit denen des Schachtes 2 bzw. der Abluftleitung 5 korrespondieren. Das erleichtert sowohl den Zusammenbau der Dunstabzugshaube als auch ihren Anschluss an die Abluftleitung der Anlage.The housing 7 with the diverting device 4 forms a separate structural unit which can be connected on the inlet side to the duct 2 of the extractor hood 1 and on the outlet side to the exhaust air line 5 shown in dash-dotted lines. The inlet-side connection 22 is arranged in the bottom wall 16 of the housing. The standardized connection piece 23 is located in the cover 24, which is fixedly attached to the housing 7. Both connections have standardized arrangements and sizes which correspond to those of the shaft 2 and the exhaust air line 5. This makes it easier to assemble the extractor hood as well as to connect it to the system's exhaust duct.

Der erfindungsgemäße Aufbau der Umleiteinrichtung 4 als modulare Baueinheit ermöglicht die Anpassung derselben an die jeweiligen Einsatzbedingungen durch Wahl des geeigneten Moduls. Es ist außerdem dadurch möglich, standardisierte Dunstabzugshauben und normierte Abluftleitungen zu verwenden, was erhebliche wirtschaftliche Vorteile mit sich bringt. Darüber hinaus wird auch die Reparatur der Umleiteinrichtung sehr erleichtert, weil sie außerhalb der Anlage etwa durch Austausch des Moduls durchführbar ist.The structure according to the invention of the diverting device 4 as a modular unit enables the adaptation the same to the respective conditions of use by choosing the appropriate module. It is also possible to use standardized extractor hoods and standardized exhaust air ducts, which has considerable economic advantages. In addition, the repair of the diversion device is also made much easier because it can be carried out outside the system, for example by replacing the module.

Um das Modul auslassseitig mit der passenden Verbindung zu versehen, ist es nur erforderlich, das Gehäuse 7 mit dem entsprechend ausgebildeten Deckel 24 zu versehen.In order to provide the module with the appropriate connection on the outlet side, it is only necessary to provide the housing 7 with the correspondingly designed cover 24.

Die Bodenwand 16 hat eine Isolierung 25 aus schall- und vibrationsdämmendem Material, welche die Schall- und Vibrationsstörungen des Sauggebläses herabsetzt. Zu diesem Zweck sind auch im Bereich der seitlichen Auslässe 10a, 10b Materialisolierungen 26a, 26b vorgesehen. Gemäß Fig. 2 ist als Alternative im Unterschied zu Fig. 1 beim Einlass eine Leitung 5 analog zu derjenigen beim Auslass vorgesehen, welche dann mit der Abzugshaube oder dergleichen verbunden sein kann.The bottom wall 16 has an insulation 25 made of sound- and vibration-absorbing material, which reduces the noise and vibration disturbances of the suction fan. For this purpose, material insulation 26a, 26b are also provided in the area of the lateral outlets 10a, 10b. According to Fig. 2 is as an alternative in contrast to Fig. 1 at the inlet a line 5 analogous to that at the outlet is provided, which can then be connected to the extractor hood or the like.

Die beschriebene Umleiteinrichtung weist zwei seitliche Auslässe 10a, 10b auf, um die Umluft in den Aufstellraum 6 gleichmäßiger zu leiten als dies mit nur einer seitlichen Auslassöffnung der Fall wäre.The diverting device described has two lateral outlets 10a, 10b in order to direct the circulating air into the installation space 6 more evenly than would be the case with only one lateral outlet opening.

Claims (5)

  1. Fume extraction hood (1) with a diverter device (4) for diverting a stream of air, whereby the diverter device (4) is provided with outlets (9, 10a, 10b) and at least one swivelable divert flap (11a, 11b) between those outlets, whereby an outlet (9) at the front side for the connection to an exhaust duct (5) for the exhaust mode and an outlet (10a) laterally for a circulation mode is provided, whereby the diverter device (4) is provided with a housing (7) designed as a module, whereby the housing (7) is connectable at the inlet side with the fume extraction hood (1) and is provided with the outlet (9) at the front side for the exhaust mode, characterized in that
    the housing (7) is provided additionally with a further lateral outlet (10b) for the circulation mode, which is positioned directly opposite the other lateral outlet (10a) and together with the latter distributes the circulating air more evenly, whereby each of the two lateral outlets (10a, 10b) is associated with a divert flap (11a, 11b), whereby both divert flaps (11a, 11b) can be switched synchronously and they shut off the outlet (9) at the front side in one switching position and open the two lateral outlets (10a, 10b) at the same time, and whereby in another switching position these divert flaps (11a, 11b) close the lateral outlets (10a, 10b) and open the outlet (9) at the front side, whereby the divert flaps (11a, 11b) can be swivelled in opposite directions by toothed gear segments (12a, 12b) engaging with one another, on which the divert flaps are fastened transversely to them, and these toothed gear segments (12a, 12b) are produced from plate-type material and are drivable in a plane close to an inner wall (14) of the housing (7).
  2. Fume extraction hood according to Claim 1, characterised in that a connection fitting (23) is arranged in a cover (24) of the housing (7).
  3. Fume extraction hood according to Claim 2, characterised in that a connection forming the connection fitting (23) at the outlet side having standardized sizes and configurations.
  4. Fume extraction hood according to Claim 1, characterised in that the divert flaps (11a resp. 11b) are switchable each into an intermediate position, with which is enabled a combined exhaust and circulation mode.
  5. Fume extraction hood according to Claim 1, characterised in that a connection (22) at the inlet side is disposed in a bottom wall (16) of the housing (7), which is provided with an insulation (25) of a sound and vibration absorbing material.
EP10005732.2A 2009-09-01 2010-06-02 Extractor hood comprising device for diverting an air flow Active EP2290298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10005732T PL2290298T3 (en) 2009-09-01 2010-06-02 extractor hood comprising device for diverting an air flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01364/09A CH701800B1 (en) 2009-09-01 2009-09-01 Means for diverting a stream of air for an extractor hood.

Publications (4)

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EP2290298A2 EP2290298A2 (en) 2011-03-02
EP2290298A3 EP2290298A3 (en) 2011-03-16
EP2290298B1 EP2290298B1 (en) 2015-03-11
EP2290298B2 true EP2290298B2 (en) 2021-03-31

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ID=43431199

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EP (1) EP2290298B2 (en)
CH (1) CH701800B1 (en)
DK (1) DK2290298T4 (en)
ES (1) ES2536746T3 (en)
PL (1) PL2290298T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707259B1 (en) 2012-11-27 2017-08-31 Wesco Ag Hood.
EP2789921B1 (en) * 2013-04-09 2017-04-05 Silverline Küchengeräte und Handel GmbH Extractor hood
CH709134B1 (en) 2014-01-15 2019-03-29 Wesco Ag Hood.
DE102014106607A1 (en) * 2014-05-12 2015-11-12 Miele & Cie. Kg Extractor hood device and method
CH711904B1 (en) 2015-12-11 2019-12-30 Wesco Ag Method for operating a room ventilation system.
EP3318786B1 (en) 2016-11-08 2020-10-21 Hamilton Sundstrand Corporation Check valve
DE102021132344B4 (en) 2021-12-08 2024-09-26 Naber Holding Gmbh & Co. Kg Method for switching a ventilation unit and a corresponding ventilation unit

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Publication number Priority date Publication date Assignee Title
DE241078C (en) †
DE1227743B (en) † 1964-10-24 1966-10-27 Ewald Siekmann Device for regulating the mixing of an air flow
DE3040051A1 (en) † 1980-10-23 1982-06-03 Georg Röhl, Lichttechnische Spezialfabrik, Apparate- und Gerätebau GmbH & Co KG, 8400 Regensburg Vapour exhaust hood control system - involves control of exhaust and fresh air ratio by regulating blower volume and/or speed
DE3148357A1 (en) † 1981-12-07 1983-06-09 Wilhelm Gebhardt Gmbh, 7112 Waldenburg For example, a blower assembly to be used with air conditioners and an air conditioner equipped with such a blower assembly
EP1055883A2 (en) † 1999-05-26 2000-11-29 BSH Bosch und Siemens Hausgeräte GmbH Smoke extracting hood
DE10151584A1 (en) † 2000-10-24 2002-06-06 Kurt Stoetzel Pressure relief flap has pivot mounted pendulum flap movable from open position by spring action or automatically by the gravity force acting upon it into closed position closing off free cross section of pressure relief duct
US20040147219A1 (en) † 2002-08-12 2004-07-29 Sankyo Seiki Mfg. Co., Ltd. Damper device
DE102006024658A1 (en) † 2006-05-22 2007-11-29 Werner Pauen Device for extractor hoods for alternating operation between circulating air and extract air, depending on the outside temperature

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE241078C (en) †
DE1227743B (en) † 1964-10-24 1966-10-27 Ewald Siekmann Device for regulating the mixing of an air flow
DE3040051A1 (en) † 1980-10-23 1982-06-03 Georg Röhl, Lichttechnische Spezialfabrik, Apparate- und Gerätebau GmbH & Co KG, 8400 Regensburg Vapour exhaust hood control system - involves control of exhaust and fresh air ratio by regulating blower volume and/or speed
DE3148357A1 (en) † 1981-12-07 1983-06-09 Wilhelm Gebhardt Gmbh, 7112 Waldenburg For example, a blower assembly to be used with air conditioners and an air conditioner equipped with such a blower assembly
EP1055883A2 (en) † 1999-05-26 2000-11-29 BSH Bosch und Siemens Hausgeräte GmbH Smoke extracting hood
DE10151584A1 (en) † 2000-10-24 2002-06-06 Kurt Stoetzel Pressure relief flap has pivot mounted pendulum flap movable from open position by spring action or automatically by the gravity force acting upon it into closed position closing off free cross section of pressure relief duct
US20040147219A1 (en) † 2002-08-12 2004-07-29 Sankyo Seiki Mfg. Co., Ltd. Damper device
DE102006024658A1 (en) † 2006-05-22 2007-11-29 Werner Pauen Device for extractor hoods for alternating operation between circulating air and extract air, depending on the outside temperature

Also Published As

Publication number Publication date
CH701800B1 (en) 2015-02-13
DK2290298T4 (en) 2021-06-14
EP2290298A2 (en) 2011-03-02
EP2290298A3 (en) 2011-03-16
DK2290298T3 (en) 2015-04-27
EP2290298B1 (en) 2015-03-11
ES2536746T3 (en) 2015-05-28
CH701800A2 (en) 2011-03-15
PL2290298T3 (en) 2015-08-31

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